Senior Signal Integrity Engineer - Optical Transceivers & LPO Modules

Amphenol Corporation; Nashua (NH); On-site; USD 130,000 - 180,000; Full time

Job summary

Amphenol Communications Solutions (ACS), a division of Amphenol Corporation, seeks an experienced Senior Signal Integrity Engineer focused on optical transceivers and LPO modules in Nashua, NH. You will lead electrical design, simulation, validation, and optimization for 800G+ technologies, collaborating across firmware, software, and mechanical teams.

The role requires deep knowledge of high-speed channels, DSPs, SerDes, PCB design, and Co-Packaged Optics, with hands-on qualification and

Qualifications

• BS, MS, or PhD in Electrical Engineering or related field.
• 5+ years of experience in high-speed signal integrity engineering.
• Strong understanding of high-speed serial interfaces and networking systems.
• Experience with 56G, 112G, and preferably 224G PAM4 technologies.
• Experience developing optical transceivers and LPO products.

Responsibilities

• Design and development of optical transceivers and LPO modules for high‑speed interconnect systems (Ethernet, PCIe).
• Evaluate optical engine integration, TIA, laser driver, VCSEL, EML, and photodiode interfaces.
• Collaborate with Firmware, software, and mechanical teams.
• Analyze insertion loss, return loss, crosstalk, impedance discontinuities, and channel compliance.
• Support compliance testing and customer qualification activities.

Skills

High-speed SI

PAM4 56G/112G/224G

Networking knowledge

Education

BS/MS/PhD in Electrical Engineering

Job description

Amphenol Communications Solutions (ACS), a division of Amphenol Corporation, is a world leader in interconnect solutions for Communications, Mobile, RF, Optics, and Commercial electronics markets. Amphenol Corporation is one of the world’s largest designers and manufacturers of electrical, electronic and fiber optic connectors and interconnect systems, antennas, sensors and sensor-based products and coaxial and high-speed specialty cable. ACS has an expansive global presence in research and development, manufacturing, and sales. We design and manufacture a wide range of innovative connectors as well as cable assemblies for diverse applications including server, storage, data center, mobile, RF, networking, industrial, business equipment, and automotive.

Position: Senior Signal Integrity Engineer Optical Transceivers & LPO Modules

Location: Nashua, NH

Amphenol High Speed Products Group is the market leader for high speed, high bandwidth electrical connectors for the Telecom/Datacom market (Mobile Networks, Storage, Servers, Routers, Switches, etc.). Our products help to enable the electronics revolution and remain a key enabler for all the major Tier 1 OEMs globally. Our global headquarters are located in Nashua, NH and we have design, sales and manufacturing locations globally.

Position Summary

We are seeking an experienced Signal Integrity Engineer, Optics, to join our High-Speed I/O R&D team. The successful candidate will be responsible for the electrical design, simulation, validation, and optimization of next-generation optical transceivers, Linear Pluggable Optics (LPO), and high-speed networking products supporting 800G, 1.6T and future generation applications.

This role requires deep expertise in high-speed serial channels, DSPs, retimers, SerDes architectures, PCB design, cable assemblies, optical modules, and signal integrity analysis from concept through production.

Responsibilities

Optical Transceiver & LPO Development

• Design and development of optical transceivers and LPO modules for high-speed interconnect systems (Ethernet, PCIe)
• Evaluate optical engine integration, TIA, laser driver, VCSEL, EML, and photodiode interfaces.
• Collaborate with Firmware engineering, software engineering, mechanical teams.
• Analyze insertion loss, return loss, crosstalk, impedance discontinuities, and channel compliance.
• Hands-on optical transceiver, LPO module qualification with broader system integration is a plus.
• Support compliance testing and customer qualification activities.
• Evaluate and optimize channels utilizing DSPs, retimers, and high-speed SerDes devices.
• Analyze CTLE, DFE, FFE, adaptive equalization, FEC, and link margin performance
• Knowledge of Co-Packaged Optics (CPO) is a plus.
• Familiarity with IEEE Ethernet and PCIe SIG standards and CMIS compliance testing.

Networking Technologies

• Support development of high-speed networking products for AI, cloud, and data center applications.
• Understand NIC architectures and networking protocols including Ethernet, TCP/IP, PCIe, and MCTP.
• Participate in performance optimization of complete networking systems.

Required Qualifications

• BS, MS, or PhD in Electrical Engineering or related field.
• 5+ years of experience in high-speed signal integrity engineering.
• Strong understanding of high-speed serial interfaces and networking systems.
• Experience with 56G, 112G, and preferably 224G PAM4 technologies.
• Experience developing optical transceivers and LPO products.

Amphenol Corporation is proud of our reputation as an excellent employer. Our focus is to provide the highest level of support and responsiveness to both our employees and our customers, the world's largest technology companies. Amphenol Corporation offers the opportunity for career growth within a global organization. We believe that Amphenol Corporation is unique in that every employee, regardless of his or her position, has the ability to positively impact the business.

Amphenol is an “Equal Opportunity Employer” - Minority/Female/Disabled/Veteran/Sexual Orientation/Gender Identity/National Origin. For additional company information please visit our website at https://www.amphenol-cs.com/